National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Possible Flooding

Dangerous heat will persist across the Southwest U.S. through Saturday with daytime highs of 110-115°F. Extreme Heat Warnings remain in effect. Dangerous heat will build across the southern Plains again beginning this weekend. Heavy to excessive rain over the Carolinas Friday may lead to isolated areas of flash flooding. Read More >

Current conditions at

Great Falls, Great Falls International Airport (KGTF)

Lat: 47.47333°NLon: 111.38222°WElev: 3675.0ft.

Clear

61°F

16°C

Humidity 51%
Wind Speed SW 11 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 28 Aug 06:00 AM MDT
Extended Forecast for

Great Falls MT

  • Today

    Today: A 20 percent chance of showers after 3pm. Patchy smoke before noon. Increasing clouds, with a high near 87. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 87 °F

    Patchy Smoke
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers before 3am, then a slight chance of showers after 5am. Patchy smoke between 9pm and midnight. Mostly cloudy, with a low around 57. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Patchy smoke between 9am and noon. Partly sunny, with a high near 79. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 49. South southeast wind 5 to 8 mph becoming west southwest after midnight. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Sunday

    Sunday: Showers likely before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 70. Breezy, with a west wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Partly cloudy, with a low around 44. Breezy, with a southwest wind 17 to 22 mph decreasing to 11 to 16 mph in the evening. Winds could gust as high as 31 mph.

    Low: 44 °F

    Slight Chance
    Showers and
    Breezy

  • Monday

    Monday: Sunny, with a high near 77. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 48. West wind around 6 mph becoming light and variable after midnight.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Today
A 20 percent chance of showers after 3pm. Patchy smoke before noon. Increasing clouds, with a high near 87. Light and variable wind becoming west southwest 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Tonight
A slight chance of showers before 3am, then a slight chance of showers after 5am. Patchy smoke between 9pm and midnight. Mostly cloudy, with a low around 57. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Patchy smoke between 9am and noon. Partly sunny, with a high near 79. Light south southwest wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 60%.
Saturday Night
Showers and possibly a thunderstorm. Low around 49. South southeast wind 5 to 8 mph becoming west southwest after midnight. Chance of precipitation is 80%.
Sunday
Showers likely before noon, then a chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 70. Breezy, with a west wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 44. Breezy, with a southwest wind 17 to 22 mph decreasing to 11 to 16 mph in the evening. Winds could gust as high as 31 mph.
Monday
Sunny, with a high near 77. Southwest wind 6 to 11 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 48. West wind around 6 mph becoming light and variable after midnight.
Tuesday
Sunny, with a high near 85.
Tuesday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 52.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 79.
Wednesday Night
Mostly cloudy, with a low around 48.
Thursday
A slight chance of showers. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Great Falls MT
 47.49°N 111.31°W (Elev. 3399 ft)
Last Update:
3:56 am MDT Aug 28, 2026
Forecast Valid:
6am MDT Aug 28, 2026-6pm MDT Sep 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation